HA16603 [HITACHI]
Contactless Switch; 非接触式开关
| 型号： | HA16603 |
| 厂家： | 
HITACHI SEMICONDUCTOR |
| 描述： | Contactless Switch |
| 文件： | 总7页 (文件大小：174K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HA16603P/FP
Contactless Switch
Description
The HA16603P is an IC for use with metal proximity switches. It can be used for the coin sensor circuit in
vending machines and similar microprocessor sensors.
Features
·
·
·
·
·
·
Two proximity switch channels
The input and output pins are arranged in pairs for convenient printed circuit board mounting.
Wide operating power-supply voltage range: 4.75 to 30 V
Low power with a dissipation current of only 2.5 mA
Normal and inverted outputs can be acquired at the same time.
The outputs is available for current-source drive only since the internal circuits are NPN transistors with
open emitter outputs.
Pin Arrangement
510
HA16603P/FP
Block Diagram
511
HA16603P/FP
Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
VCC
Rated Value
4.75 to 30
0 to VCC
Unit
V
Operating power-supply voltage range
Output voltage
Vout
V
Hysteresis pin voltage
Sensor pin voltage
V11, V14
V9, V16
V12, V13
V4, V6
0 to VCC
V
–1.3 to +2.0
–0.65 to +2.0
0 to +2.0
–7 to 0
V
Sensitivity pin voltage
Capacitor pin voltage
Output source current
Hysteresis pin sink current
Sensitivity pin source current
Sensor pin source current
Capacitor pin sink current
Allowable power dissipation*
Capacitor pin source current
Operating temperature
Storage temperature
V
V
Io(source)
I11, I14 (sink)
I12, I13 (source)
I9, I16 (source)
I4, I6 (sink)
PT
mA
mA
mA
mA
mA
mW
µA
°C
°C
0 to +1.0
–5 to +0.1
–1.0 to 0
0 to +5.0
625
I4, I6 (source)
Topr
–320 to 0
–25 to +85
–40 to +125
Tstg
Note: When multiple maximum ratings apply to the same pin, the rating that corresponds to the
smallest stress is the valid rating.
*
See page 51.
512
HA16603P/FP
Electrical Characteristics (VCC = 24 V, Ta = 25°C)
Item
Symbol Min
Typ
Max
Unit Test Condition
Dissipation current
IQ
—
2.5
6.0
mA
Sensor 1 and sensor 2: ground,
VCC = 30 V, sensitivity 1 and sensitivity
2: 10 k to ground
Output saturation
voltage
VO(sat)
—
—
—
—
—
—
1.0
1.1
—
V
(VCC – Vout)
IO(source) = +7 mA
Ta = 25°C
Ta = –25°C
Ta = 25°C
Ta = 85°C
—
V
Output leakage
current
IO(leak)
–600
–40
—
nA
µA
VCC = 30 V
—
Hysteresis pin internal rCS
resistance (on state)
260
I11, I14 (sink) = 500 µA
VCC = 30 V
Hysteresis pin
leakage current
I11, I14
—
—
—
—
1
µA
(leak)
Oscillator frequency
fOSC
1,000 kHz
513
HA16603P/FP
514
HA16603P/FP
Notes
(1) An air-core coil must be used as the sensor coil.
(2) This IC has 3 ground pins. All three ground pins must be connected to ground, even if only one channel
is used.
(3) If the sensitivity is set too high for a sensor coil with bad temperature characteristics, the operating
temperature range may become narrow. The operating temperature range for the whole system,
including the sensor coil, can be expanded by holding down the sensitivity.
Sample Recommended Operating Circuit
515
HA16603P/FP
The oscillator frequency is determined by the following formula.
The tank circuit formed by L and C0 has characteristic impedance shown in the figure. The condition for
oscillation for the HA16603P is Rd 1/g, and the condition for oscillation to stop is Rd > 1/g.
When Rd is connected to the hysteresis pin, (Rd + rcs // Rh) 1/g is the condition for oscillation to start,
and (Rd + Rh) > 1/g is the condition for oscillation to stop. Note that rcs is the internal resistance of the
hysteresis pin.
The relationship between oscillation occurring or not and the detection of a metallic object is as follows:
Oscillation occurs: When no metallic object is detected (i.e. the sensor coil and the metallic object are
separated)
Oscillation stops: When a metallic object is detected (i.e. the metallic object is near the sensor coil)
Setting the Detection Distance
Since the detection distance depends on the Q of the sensor coil and the shape, surface area, thickness, and
material of the metallic object, it can only be set by testing the completed system. Note that Rd sets the
detection distance.
516
相关型号：
©2020 ICPDF网 联系我们和版权申明